JET. 67.] NARBERTH. 303 



Taking leave of the kind hostess of the City Hotel, 

 they set out for Fishguard, making two or three hours' 

 stay at Abereiddy Bay in order to see its slate quarries. 

 The blackness of its beach was most curious, it being 

 composed of fragments of black slate, this tint being 

 probably due, our geologist supposed, to the mass of 

 decomposed organic matter from the myriads of grap- 

 tolites. The turned-back edges or " terminal curva- 

 ture " of the slate rocks, and their fractures and crump- 

 ling, interested him greatly. 



Good wick and Dinas Bays were diligently explored, 

 and, after a night at Newport, the Precelly Hills were 

 crossed, the two tourists proceeding to Narberth, one 

 of them thankful to have reached the region of rail- 

 ways without misadventure. 



The following extract from a note-book describes his 

 visit to Gilfach quarries : 



25th June 1879. From Narberth drove out to Gilfach and 

 called on Mr Shields, who showed me the quarries whence the 

 trilobites in the Tenby Museum came. It is at the foot of the 

 hill, near the brook in the N.-E. corner of his grounds. It is 

 a very remarkable section. The strata are vertical, and thin 

 seams of limestone alternate with slate, the limestone being more 

 or less decomposed into a brown earth with stony fragments and 

 fossils. The edges of the strata look like upright rafters worn 

 and soiled at the edges, and the section has all the regularity 

 of a wooden paling. The surfaces of the strata are at right 

 angles to this, and show on their surface an extraordinary pro- 

 fusion of trilobites (AsapJms tyrannus of large size and others), 

 most of them quite perfect and not at all distorted. 



J. Prestwich to J. Evans. SHOREHAM, 15th August 1879. 



MY DEAR EVANS, ... I have not been up to town since our 

 return, but expect to be there next week, lumbago (of which I 

 have a slight attack) permitting. I had a visit from De Koninck 



